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Finding the Fourth Proportional to 179,491.28, 247,696.80 and 98,918.90

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Solution

The fourth proportional to 179,491.28, 247,696.80 and 98,918.90 is: 136,507.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,491.28 : 247,696.80 = 98,918.90 : x
  2. Step 2: Convert to fraction form
    179,491.28/247,696.80 = 98,918.90/x
  3. Step 3: Cross multiply
    179,491.28x = 247,696.80 × 98,918.90
  4. Step 4: Simplify right side
    179,491.28x = 24,501,894,989.52
  5. Step 5: Solve for x
    x = 24,501,894,989.52/179,491.28
  6. Step 6: Final answer
    x = 136,507.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.